Expedition 2WD V8-281 4.6L VIN W EFI (1997)
Radiator Cooling Fan Temperature Sensor / Switch: Description and Operation
NOTE: In some applications of the 4.6L engine, the Cylinder Head Temperature (CHT) sensor provides the signal used by the Powertrain Control
Module (PCM) in place of the Coolant Temperature Sensor (CTS) for functions such as, but not limited to, activating the electric cooling fans.